Question: who  is the venue for operator of F.C. Porto?
Paraphrase: who is the setting for administrator of F.C. Porto?
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P137 wd:Q128446 . ?sbj wdt:P31 wd:Q17350442 } 
Answer: CTFD PortoGaia